Improvement in coating brick, wood, and other surfaces on walls



. antral swat parent can.

EDWARD E. ALVORD, or SALT RIVER, MIOHIGAN.

Letters Patent No. 111,602, dated February 7, 1871.

lMP ROVEMENT lN COATING BRICK, WOOD, AND OTHER SURFAOES ON WALLS, &c.

' The Schedule referred to in these Letters Patent and making part ofthe same.

To all whom it may concern [Be it known that I, EDWARD E. ALVORD, ofSalt River, county of Isabella and State of Michigan, have invented anew and improved process for the manufacture and productionof Cement tobe applied to Stone, Brick, or Wooden Surfaces of Buildings, bothextemal or internal, and that may also be 'applied to any wooden surfacesuch as board fences, or other similar material where it may bedesirable to 'furnish a water and fire-proof surface, of which thefollowing is the specification.

In the application of the first coat tobrick or wooden surfaces,I makeand prepare, in equal parts, stonelime, slaked dry and sifted, andcommon salt, adding thereto a suflicient quantity of water to make theplaster or cement of the proper. consistency to be spread upon thestone, brick, or wooden surface with a trowel or other suitableimplement.

,. For the second coat I take equal parts of stonelime slaked, dried,and sifted, and salt and sand sifted,

adding suflicicient water thereto and for the purposes described in theproduction of the first coat.

For the third coat I take 'two parts plaster Paris and one part sifted.sand, adding water thereto for thepurposes described in the preparationof the first two coats. I

The last preparation constituting a finished surface, I do not confinemyself to the exact proportions above specified; for it is obvious thata change could be made therein producing similar results, although Iconceive those described by me are better adapted to and for thepurposes designed.

What I claim as my-iuvcntiou, and desireto secure by Letters Patent, is-

The method herein described for the coating of brick, wood, or othersurfaces, with cement or plaster prepared and made by the process andsubstantially in the proportions herein specified.

EDWARD E. ALVORD.

\Vitnesses E. A. BARNARD, H. M. BARNARD.

